Mercurial > urweb
changeset 124:541282b81454
Explifying (non-mutual) 'val rec'
| author | Adam Chlipala <adamc@hcoop.net> |
|---|---|
| date | Thu, 17 Jul 2008 10:13:18 -0400 |
| parents | e3041657d653 |
| children | fd98dd10dce7 |
| files | src/corify.sml src/expl.sml src/expl_env.sml src/expl_print.sml src/explify.sml |
| diffstat | 5 files changed, 30 insertions(+), 14 deletions(-) [+] |
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--- a/src/corify.sml Thu Jul 17 10:09:34 2008 -0400 +++ b/src/corify.sml Thu Jul 17 10:13:18 2008 -0400 @@ -384,6 +384,7 @@ in ([(L'.DVal (x, n, corifyCon st t, corifyExp st e, s), loc)], st) end + | L.DValRec _ => raise Fail "Explify DValRec" | L.DSgn _ => ([], st) @@ -531,7 +532,8 @@ fun maxName ds = foldl (fn ((d, _), n) => case d of L.DCon (_, n', _, _) => Int.max (n, n') - | L.DVal (_, n', _ , _) => Int.max (n, n') + | L.DVal (_, n', _, _) => Int.max (n, n') + | L.DValRec vis => foldl (fn ((_, n', _, _), n) => Int.max (n, n)) n vis | L.DSgn (_, n', _) => Int.max (n, n') | L.DStr (_, n', _, str) => Int.max (n, Int.max (n', maxNameStr str)) | L.DFfiStr (_, n', _) => Int.max (n, n')
--- a/src/expl.sml Thu Jul 17 10:09:34 2008 -0400 +++ b/src/expl.sml Thu Jul 17 10:13:18 2008 -0400 @@ -97,6 +97,7 @@ datatype decl' = DCon of string * int * kind * con | DVal of string * int * con * exp + | DValRec of (string * int * con * exp) list | DSgn of string * int * sgn | DStr of string * int * sgn * str | DFfiStr of string * int * sgn
--- a/src/expl_env.sml Thu Jul 17 10:09:34 2008 -0400 +++ b/src/expl_env.sml Thu Jul 17 10:13:18 2008 -0400 @@ -240,6 +240,7 @@ case d of DCon (x, n, k, c) => pushCNamed env x n k (SOME c) | DVal (x, n, t, _) => pushENamed env x n t + | DValRec vis => foldl (fn ((x, n, t, _), env) => pushENamed env x n t) env vis | DSgn (x, n, sgn) => pushSgnNamed env x n sgn | DStr (x, n, sgn, _) => pushStrNamed env x n sgn | DFfiStr (x, n, sgn) => pushStrNamed env x n sgn
--- a/src/expl_print.sml Thu Jul 17 10:09:34 2008 -0400 +++ b/src/expl_print.sml Thu Jul 17 10:13:18 2008 -0400 @@ -345,7 +345,17 @@ p_list_sep (string ".") string (m1x :: ms @ [x]) end -fun p_decl env ((d, _) : decl) = +fun p_vali env (x, n, t, e) = box [p_named x n, + space, + string ":", + space, + p_con env t, + space, + string "=", + space, + p_exp env e] + +fun p_decl env (dAll as (d, _) : decl) = case d of DCon (x, n, k, c) => box [string "con", space, @@ -358,17 +368,19 @@ string "=", space, p_con env c] - | DVal (x, n, t, e) => box [string "val", - space, - p_named x n, - space, - string ":", - space, - p_con env t, - space, - string "=", - space, - p_exp env e] + | DVal vi => box [string "val", + space, + p_vali env vi] + | DValRec vis => + let + val env = E.declBinds env dAll + in + box [string "val", + space, + string "rec", + space, + p_list_sep (box [newline, string "and", space]) (p_vali env) vis] + end | DSgn (x, n, sgn) => box [string "signature", space,
--- a/src/explify.sml Thu Jul 17 10:09:34 2008 -0400 +++ b/src/explify.sml Thu Jul 17 10:13:18 2008 -0400 @@ -111,7 +111,7 @@ case d of L.DCon (x, n, k, c) => SOME (L'.DCon (x, n, explifyKind k, explifyCon c), loc) | L.DVal (x, n, t, e) => SOME (L'.DVal (x, n, explifyCon t, explifyExp e), loc) - | L.DValRec _ => raise Fail "Expliofy DValRec" + | L.DValRec vis => SOME (L'.DValRec (map (fn (x, n, t, e) => (x, n, explifyCon t, explifyExp e)) vis), loc) | L.DSgn (x, n, sgn) => SOME (L'.DSgn (x, n, explifySgn sgn), loc) | L.DStr (x, n, sgn, str) => SOME (L'.DStr (x, n, explifySgn sgn, explifyStr str), loc)